AS3935 sensor issue

[smaj100]

The problem

using the as3935 sensor component, when trying to set the div ratio values, or capacitance values, neither with change when setting in the code. When you enable tune_antenna: true it shows div ration of 16, capacitance of 0. even if you set the values with tune_antenna: false, they don't show as changing?

Which version of ESPHome has the issue?

2024.9.1

What type of installation are you using?

Home Assistant Add-on

Which version of Home Assistant has the issue?

2024.10.1

What platform are you using?

ESP32

Board

AS3935

Component causing the issue

spi

Example YAML snippet

spi:
  clk_pin: GPIO18
  mosi_pin: GPIO23
  miso_pin: GPIO19

as3935_spi:
  cs_pin: GPIO16
  irq_pin: GPIO17
  indoor: true
  div_ratio: 128
  capacitance: 08
  noise_level: 2
  spike_rejection: 2
  lightning_threshold: 5
  mask_disturber: true
  tune_antenna: true
  calibration: false
  watchdog_threshold: 2

binary_sensor:
  - platform: as3935
    name: ${device_name}_Storm Alert

sensor:
  - platform: as3935
    lightning_energy:
      name: ${device_name}_Lightning Energy
    distance:
      name: ${device_name}_Distance Storm

Anything in the logs that might be useful for us?

[15:42:50][I][app:029]: Running through setup()...
[15:42:50][D][spi:035]: Setting up SPI bus...
[15:42:50][I][i2c.arduino:218]: Performing I2C bus recovery
[15:42:50][I][as3935_spi:010]: SPIAS3935Component setup started!
[15:42:50][D][spi_device:362]: mode 0, data_rate 2000kHz
[15:42:50][I][as3935_spi:012]: SPI setup finished!
[15:42:50][C][as3935:010]: Setting up AS3935...
[15:42:50][C][as3935:013]:   IRQ Pin: GPIO17
[15:42:50][C][as3935:027]:   Antenna tuning: ENABLED - lightning detection will not function in this mode
[15:42:50][I][as3935:310]: Starting antenna tuning...
[15:42:50][I][as3935:313]: Division Ratio is set to: 16
[15:42:50][I][as3935:314]: Internal Capacitor is set to: 0
[15:42:50][I][as3935:315]: Displaying oscillator on INT pin. Measure its frequency - multiply value by Division Ratio

Additional information

No response

[billmaterial]

@smaj100

I know this is not the issue you are reporting but I thought I would mention it anyway as this would be a show stopper if you were using this type of board.

There is a problem with the wrong tuning capacitors on some boards which prevents it from working correctly, have a look at this site https://tasmota.github.io/docs/AS3935/#breakout-boards-issues and if your board is the same one as the board shown, then you may have to change the cap's to get it to work.

I had a problem with it not working or tuning correctly and it took me weeks to find the issue and test it as we don't often get thunder storms, so I made a lightning simulator out of a Raspberry Pi Pico, a few components and a cheap Amazon AM antenna that works surprisingly well.

I rember using the Arduino code examples and library, not ESPHOME to try and tune it before I realised the problem was with the cap's so maybe its a problem with the ESPHOME AS3935 code module that's causing the issue.

My Setup code for reference: I found that setting the "Indoor: True" caused many false triggers and made it unusable for me although the module is actually indoors. This setup works well and I can detect lightning for 30km+ verified using Blitzortung, allthough it can be a bit sensitive at times.

as3935_spi:
  cs_pin: GPIO27
  irq_pin: GPIO19
  id: lightning_detector

  div_ratio: 0
  capacitance: 0
  mask_disturber: False
  calibration: True
  tune_antenna: False

  spike_rejection: 1 # Default 2, Max 11
  noise_level: 1 # Default 2, Max 7
  watchdog_threshold: 1 # Default 2
  lightning_threshold: 1
  indoor: False